Atlas · Mozambique / Signals & Anomalies
INTELLIGENCE

Signals & anomalies

Statistical checks that flag polygons and patterns that look unusual. They are prompts for review, not errors: an unusual polygon can be a real feature.

Polygons < 0.01 ha
0
0.0% of all polygons
Polygons < 0.001 ha
0
Likely slivers (≈ 10 m²)
Geometries repaired
55,235
Invalid shapes fixed on import
Effective mesh size
1,805.0 ha
Largest patch 2.8% of area

Largest-size outliers

z-score of ln(area): how many standard deviations above typical

FormationArea (ha)zLocation
Mangrove8,663.65.73-19.1510, 35.6497
Mangrove8,417.55.71-17.1125, 38.4598
Mangrove5,076.75.43-18.7617, 36.3023
Mangrove4,763.95.39-18.8479, 36.2179
Mangrove4,484.25.36-21.2524, 35.0168
Mangrove4,375.25.35-10.5205, 40.4721
Mangrove4,178.65.32-15.5199, 40.5195
Mangrove4,115.95.31-18.4825, 36.4667
Mangrove3,955.75.29-17.0643, 38.6160
Mangrove3,683.95.25-16.9074, 39.0738

Most irregular outlines

Shape index (perimeter ÷ circle perimeter): high values suggest jagged or sliver-like edges

FormationArea (ha)Shape idxLocation
Mangrove1,445.4920.9-20.6997, 34.8548
Mangrove4,115.8719.5-18.4825, 36.4667
Mangrove3,118.8317.9-18.1114, 36.8306
Mangrove8,663.5617.8-19.1510, 35.6497
Mangrove1,432.2717.2-18.2607, 36.7392
Mangrove2,147.5314.7-18.4197, 36.6143
Mangrove239.5813.7-20.7732, 34.8657
Mangrove5,076.7513.5-18.7617, 36.3023
Mangrove8,417.5013.1-17.1125, 38.4598
Mangrove1,571.6013.0-18.2001, 36.7103
Mangrove4,484.2412.9-21.2524, 35.0168
Mangrove930.3212.9-18.4081, 36.4927
How to use this page. Check flagged polygons against recent satellite imagery. Remove genuine mapping artefacts in the next source update; keep real features. Atlas never edits the source data silently.
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